From: Tejun Heo <tj@kernel.org>
To: Waiman Long <longman@redhat.com>
Cc: Zefan Li <lizefan.x@bytedance.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Jonathan Corbet <corbet@lwn.net>, Shuah Khan <shuah@kernel.org>,
linux-kernel@vger.kernel.org, cgroups@vger.kernel.org,
linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org,
Juri Lelli <juri.lelli@redhat.com>,
Valentin Schneider <vschneid@redhat.com>,
Frederic Weisbecker <frederic@kernel.org>,
Mrunal Patel <mpatel@redhat.com>,
Ryan Phillips <rphillips@redhat.com>,
Brent Rowsell <browsell@redhat.com>,
Peter Hunt <pehunt@redhat.com>, Phil Auld <pauld@redhat.com>
Subject: Re: [PATCH v4 4/9] cgroup/cpuset: Allow suppression of sched domain rebuild in update_cpumasks_hier()
Date: Mon, 10 Jul 2023 11:01:36 -1000 [thread overview]
Message-ID: <ZKxxsPKf4uGoJWdX@slm.duckdns.org> (raw)
In-Reply-To: <20230627143508.1576882-5-longman@redhat.com>
On Tue, Jun 27, 2023 at 10:35:03AM -0400, Waiman Long wrote:
> A single partition setup and tear-down operation can lead to
> multiple rebuild_sched_domains_locked() calls which is a waste of
> effort. This can partly be mitigated by adding a flag to suppress the
> rebuild_sched_domains_locked() call in update_cpumasks_hier(). Since
> a Boolean flag has already been passed as the 3rd argument to
> update_cpumasks_hier(), we can extend that to a full flag word.
>
> The sched domain rebuild suppression is now enabled in
> update_sibling_cpumasks() as all it callers will do the sched domain
> rebuild after its return later on anyway.
>
> Signed-off-by: Waiman Long <longman@redhat.com>
Applied 1-3 to cgroup/for-6.6.
Thanks.
--
tejun
next prev parent reply other threads:[~2023-07-10 21:01 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-27 14:34 [PATCH v4 0/9] cgroup/cpuset: Support remote partitions Waiman Long
2023-06-27 14:35 ` [PATCH v4 1/9] cgroup/cpuset: Inherit parent's load balance state in v2 Waiman Long
2023-06-27 14:35 ` [PATCH v4 2/9] cgroup/cpuset: Extract out CS_CPU_EXCLUSIVE & CS_SCHED_LOAD_BALANCE handling Waiman Long
2023-06-27 14:35 ` [PATCH v4 3/9] cgroup/cpuset: Improve temporary cpumasks handling Waiman Long
2023-06-27 14:35 ` [PATCH v4 5/9] cgroup/cpuset: Add cpuset.cpus.exclusive for v2 Waiman Long
2023-06-27 14:35 ` [PATCH v4 6/9] cgroup/cpuset: Introduce remote partition Waiman Long
2023-06-27 14:35 ` [PATCH v4 7/9] cgroup/cpuset: Check partition conflict with housekeeping setup Waiman Long
[not found] ` <20230627143508.1576882-1-longman-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2023-06-27 14:35 ` [PATCH v4 4/9] cgroup/cpuset: Allow suppression of sched domain rebuild in update_cpumasks_hier() Waiman Long
2023-07-10 21:01 ` Tejun Heo [this message]
2023-06-27 14:35 ` [PATCH v4 8/9] cgroup/cpuset: Documentation update for partition Waiman Long
2023-07-10 21:30 ` Tejun Heo
[not found] ` <ZKx4ZJowRhRtjZxB-NiLfg/pYEd1N0TnZuCh8vA@public.gmane.org>
2023-07-11 0:21 ` Waiman Long
2023-07-11 0:42 ` Tejun Heo
2023-07-11 0:53 ` Waiman Long
[not found] ` <a429e60a-fc4f-60b0-3978-71596fed9542-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2023-07-11 1:07 ` Tejun Heo
2023-07-11 3:24 ` Waiman Long
2023-06-27 14:35 ` [PATCH v4 9/9] cgroup/cpuset: Extend test_cpuset_prs.sh to test remote partition Waiman Long
2023-07-10 21:08 ` [PATCH v4 0/9] cgroup/cpuset: Support remote partitions Tejun Heo
2023-07-11 0:33 ` Waiman Long
2023-07-11 1:00 ` Tejun Heo
2023-07-11 1:38 ` Waiman Long
2023-07-11 1:45 ` Tejun Heo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=ZKxxsPKf4uGoJWdX@slm.duckdns.org \
--to=tj@kernel.org \
--cc=browsell@redhat.com \
--cc=cgroups@vger.kernel.org \
--cc=corbet@lwn.net \
--cc=frederic@kernel.org \
--cc=hannes@cmpxchg.org \
--cc=juri.lelli@redhat.com \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=lizefan.x@bytedance.com \
--cc=longman@redhat.com \
--cc=mpatel@redhat.com \
--cc=pauld@redhat.com \
--cc=pehunt@redhat.com \
--cc=rphillips@redhat.com \
--cc=shuah@kernel.org \
--cc=vschneid@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox